Police are trying to find an alleged flasher who exposed himself at Euston station.

British Transport Police (BTP) say they were alerted to the incident on May 1 by a report on social media.

PC Mark Sutton said: “Tackling unwanted sexual behaviour on trains and in stations is a priority for BTP.

“In this case, a man exposed himself in front of passengers at the station.

“We need to find the person responsible. I think the man in the image we are issuing today can help with our investigation into the incident.”

Anyone with information should contact BTP on 0800 40 50 40, or text 61016, quoting reference ESUB/B7 of 21/05/2015. Information can also be passed anonymously to Crimestoppers on 0800 555 111.